/Engine/Source/Developer/Localization/Public/PortableObjectPipeline.h
Given the collapse mode and PO format, append any extra required meta-data to the PO file header
namespace PortableObjectPipeline { void PortableObjectPipeline::UpdatePOFileHeaderForSettings ( [FPortableObjectFormatDOM](API\Developer\Localization\FPortableObjectFormatDOM) & PortableObject, const [ELocalizedTextCollapseMode](API\Developer\Localization\ELocalizedTextCollapseMode) InTextCollapseMode, const [EPortableObjectFormat](API\Developer\Localization\EPortableObjectFormat) InPOFormat ) }